Adjustable seat



Jan. 15, 1929. 1,699,249

L.. R. PROVOsT ET AL ADJUSTABLE SEAT l Filed April 4, 1927 2 sheets-sheet 1 3@ I ,SB 36 El., N 7 l /0 Z 5 v M I `7` s /2 i 6 JZ s /4 3 /6 i ,Y ///////,l l n 24 /20 g M \\L \\l g lll y amsn,

Jan. l5, 1929.

1,699,249 L. R. PRovosT ET AL.

ADJUSTABLE SEAT Filed April 4. 1927 z seet-s-sneex 2 36g f1 g E.

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Patented Jan. 15, '1929.

UNITED sTArjEs PATENT OFFICE.

LAURENCE R. PROVOST, F SHAWEE, AND HAROLD BROW, 0F KASAS CITY,

KANSAS.

ADJUSTABLE SEAT.

Application led April 4, 1927. Serial No. 180,924.

LOur invention relates to improvements in adjus able seats and one object is to provide a seat which can be readily adjusted to forward, backward, and intermediate positions. A lurther object is to provide a seat in which vertical adjustn'ient is had simultaneously with the forward, backward, and intr-r` mediate adjustments.

Another object is to provide a seat which lo can be arranged close to the floor oit a motor car, airplane, boat,` or other vehicle and tipped upwardly out oit the way to provide a passage tor persons entering and leaving such Vehicle.

A further object is to provide a seat which is automatically locked against accidental movement when adjusted to a sitting position.

In order that the invention may be fully understood, reference will now be had to the accompanying drawings, in which:

Fig. 1 is a side elevation of the preferred torni of invention, three dii'lerent seatingl po-` siticns beingl shown by full and dotted lines.

Fig. 2 is a fragmentary Side elevation d.f5 showing' the seat tipped forwardly and upwardly to provide a passageway.

Fig. 3 is a slightly enlarged Vertical sec tion of one ot' the forward brackets and associate parts.

:to Fig. l is a detail perspective View oi? one ol a pair of seat-supporting members.`

Fig. 5 is a plan` View ol the bracket and swingable element disclosed by Fig'. 3.

lig. +5 a side elevation of a modilied form ol" seatsupporting;mechanism. Y liifr T shows lthe seat 'tilted `forwardly and ly to provide a passageway.

Figi'. tl a slightly enlarged vertical section ci one ot the trout brackets and associate mechanism.

Fia. 9 is a detail perspective View ot one oii a pair oi' seat-supporting members.

Fie. lf() a detail plan View of the bracket and swinpgable element disclosed by liio'. S.

'leerrnigr more particularly to the iorms disclosed by Figs. 'l to 5, inclusive. A de `V nates a suitable seat which is secured to a pair of sumiortingr members 2 havii're,v rigid downwardly ewteiulint.Y front and rear arms 4- 5U and (i, respectively. The front arms 4 are spaced backwardly from the front ends or" the sul'iporting' members 2 in order to Clear the top of a pair of front brackets 8 when the .seat A is tilted forwardly and upwardly to .Fim 1. the `rear end of said sea-t is o'rasied the position disclosed by Fig. 2 to `provide `a passageway to and from a rear seat, not shown, when the invention is installed in a vehicle harilrzrl front and rear seats.`

The lows "portions of the front arms et are provided with latch members 10 adapted to (.:oengage complemental `latch members 12 :termed in the curved surfaces 14 ot' the front brac tots S for securing the supportingarms l and the seat A in dii'ferent'positions as shown by fullgand dotted lines, Fig. l. The .lower portions of the front arms l are operably connected to the front brackets 8 by suitable means such as swingable elements lll which, in the present instance, are connected to the arms Llby pivots 18 and to thebrackets S by pivots 20. The swingable elements 16 tq 'uide the arms 4l as the latter are moved to their dilii'erent positions, and also coact in holding' the latch elements 10 and12 from accidental disengagement after the seat A and the arms l have been adjusted to the diiierent positions shown by Fig'. 1. As shown more clearly by Fig. 5, the swing'ahle elements 1h operate in slots 22, thelopposite walls Le of which .support said swingable` elements 1.6 from sidesway. y 1 i i The rear arms 6 are supported by `a pair of? rear b ackets 26 which.maycorrespond with the brackets 8, excepting' that instead olhaw imc1 .latch elements 12, notches 28am :formed 8`5 in the curved surfaces 30 to receive the oppositelydlisposed shoulders 32 formed ou the lower portion oi each arm (l. A lug;i 3i extends downwardly from betweeneiuh pair ol s-:luiuldcrs 32 to enter the `respective brach'- ets 2li and coat-t with said shoulders B2 in preventing sidesway ol the arms The brackets 8 and 26 have baseportions 36 and 38. respocthely, so that they may be firmly bolted or otherwise secured to the floor B ot thev vehicle in` which the seatri. is installed. y

o In practice whenthe seat to bemored u'iwardly and forwardly from the full line position to either of the dotted linepositious,

and rocked upwardly i upon the` pivots 1S in ordery to rock the latch elements 1()` out of engagement with the lower latch elements 12. The seutlll is then moved bodily upwardly and forwardly until the latch elements 10 are opposite either the intermediate or the upper latch elements 12 as preferred, whereupon the rear eind oli said seat is lowered to rook the 2 neeaeao intermediate position presents a comfortable seat to the occupant as it is not tipped more in one position than another. ln addition to the various positions above mentioned, the seat A may be tilted to tl'ieposition disclosed by Figi'. il, which in connection with the ad -jnstments aforementioned, malte it very de sirable for use in motor vehicles of the coach type where one or both front seats must be tilted upwardly and forwardly for the purpose of leaving,` a passageway to and from the rear seat.

In the modified form disclosed by Figs. 6 to l0, inclusive, the construction and operai tion of the different parts is substantially the same as that of the parts disclosed by Figs. l to 5, inclusive, as is evidenced by corre spending reference numerals with exponents a, the chief differences being' that the brackets 8a andQa have no intermediate latch members 12aY but have only upper and lower latch members 12, and hence the seat A can be adjusted only to an eXtreme backward position as shown by full lines, or to an estreme forward and upward position as shown by dotted lines, 6, in addi-tion'to the tilted position shown by Fig. 7.

Another departure from the preferred form resides in the latch members l0 which are connected to the lower ends of the front arms 4 by the pivots 18a instead of being' rigidly connected to said arms 4ta. By pivotally connecting the latches l0 and 'toi-ming extensions 13 on the lower latch members l2". the latter will guide the former into the locking engagement shown by full lines, Fing. (i, in the event the operator should let the seat A. down too soon and cause the lower end of the latches l()a tocontact said extensions i3. The latches l0 are free to swing baclnvardly to facilitate their engagement with the lower latch members l2, but are normally held by springs l5 in the position shown by Figs. 6 and 9.

TWhile we have shown two forms of the invention, we reserve the right to ail such other forms and modifications as properly fall within the spirit and scope of the invention as claimed.

Having` thus described our invention, what we c aim and desire to secure by Letters Patent, is:

hln combination, movable seat support` ing members having downwardly extendingfront and rear arms, front and rear brackets for supportingl said arms in diiferent positions and provided with curved surfaces, coactinp; latch means on the front bra clcets and the front arms for securing' the latter at difterent points upon the associate curved surfaces, and swingable elements pivotally connected to the front arms and brzultets and extending; radially of the center of the lastmentioned curved surfaces.

Q.. ln combination with u scat :.ulaptcd to be moved bodily to forward, backward, and intermediate seating positions, supporting,T members secured to and nio fable with said seat and provided. with rigid downwardly entendineY front and rear arms, latch members on the lower ends of the front arms, front and rear brackets for supportingv the arms in. their forward, backward, and intermediate positions, latch members ou the front brackets which are anton'latically outraged by the latch members on the front arms as the latter are adiusted to their different positions, and swingable elements operably connecting` the front brackets and the front arms for holding the latter in spaced relation with said front brackets and also upon which the front arms may swingl and thereby allow the seat to be adjusted to a vertical position.

3. ln combination with a seat adapted to be moved bodily to ditferent positions, sup porting; members secured to and movable with said seat and provided with downwardly extendingl front and rear arms, slotted brackets for supporting1 the front arms in their different positions, elements swinaablv mounted in the slotted portions of said bracl-- ets and operably connected to the latter and the front arms, and bracltcts for supportinn` the rear arms in their diliferent positions.

et. ln combination with a scat adapted to be moved boiilily to di'lferent positions. sul poi-tine' members secured to and movable with said stat. and providml with downwardly ei;- tendingr front and rear arms, front lu'ui'iltets for supportinov the front arms in different positions.. vertically slotted ret r lwoclfcts having); notches on opposite .sides of their slotted portion, shoulders on the lower portions of the rear arms adapted to seat in said notches and lues depending from said shoulders and adapted to enter said slotted portions.

ln testimony whereof we atlir our sinne.- tores.V

LAURENCE ll. PRVill- HAROQD BROWN. 

